To set the API version of a request, send a Knot-Version in the request header. Version 2.0 should be used to make requests.
curl -X POST 'https://development.knotapi.com/session/create' \
-u 'bd271e95-14e6-47ab-9f4f-225898f69183:cf819749c0574616ba93b5935b8cf108' \
-H 'Content-Type: application/json' \
-H 'Knot-Version: 2.0'